As temperatures continue to plunge, many tenants could face the problem of frozen pipes. Mike O'Brien from Petri Plumbing and Heating says it is his busiest time of year because of frozen pipes. That happens when water inside the pipes expands, often brea

As temperatures continue to plunge, many tenants could face the problem of frozen pipes. Mike O'Brien from Petri Plumbing and Heating says it is his busiest time of year because of frozen pipes. That happens when water inside the pipes expands, often brea